def get_pubkey_derivation(self, x_pubkey):
if x_pubkey[0:2] in ['02', '03', '04']:
if x_pubkey in self.keypairs.keys():
return x_pubkey
elif x_pubkey[0:2] == 'fd':
# fixme: this assumes p2pkh
_, addr = xpubkey_to_address(x_pubkey)
for pubkey in self.keypairs.keys():
if public_key_to_bc_address(pubkey.decode('hex')) == addr:
return pubkey
def xpubkey_to_address(x_pubkey):
if x_pubkey[0:2] in ['02', '03', '04']:
pubkey = x_pubkey
elif x_pubkey[0:2] == 'ff':
xpub, s = BIP32_KeyStore.parse_xpubkey(x_pubkey)
pubkey = BIP32_KeyStore.get_pubkey_from_xpub(xpub, s)
elif x_pubkey[0:2] == 'fe':
mpk, s = Old_KeyStore.parse_xpubkey(x_pubkey)
pubkey = Old_KeyStore.get_pubkey_from_mpk(mpk, s[0], s[1])
elif x_pubkey[0:2] == 'fd':
addrtype = ord(x_pubkey[2:4].decode('hex'))
hash160 = x_pubkey[4:].decode('hex')
pubkey = None
address = hash_160_to_bc_address(hash160, addrtype)
else:
raise BaseException("Cannnot parse pubkey")
if pubkey:
address = public_key_to_bc_address(pubkey.decode('hex'))
return pubkey, address
def get_address(self, for_change, n):
pubkey = self.get_pubkey(for_change, n)
address = public_key_to_bc_address(pubkey.decode('hex'))
return address